Vaccination Coverage, Timeliness and Adverse Events Following Immunization in Children with Medical Conditions - Shandong Province, China, 2023.

Limitations

The study is retrospective and limited to Shandong Province, China, so results may not generalise to other regions or countries. The document does not detail the specific reasons for delays or lower coverage in particular groups.

Abstract

WHAT IS ALREADY KNOWN ABOUT THIS TOPIC?: Children with medical conditions who remain undervaccinated are at risk of vaccine-preventable diseases. WHAT IS ADDED BY THIS REPORT?: In a multicenter retrospective study of 24,966 children with medical conditions, the median coverage of 10 National Immunization Program vaccines reached 97.33%, whereas timely completion was 89.21%. Children with brain, immune, or congenital disorders exhibited significantly lower vaccination coverage than those with other medical conditions. Post-diagnosis delays exceeded those before diagnosis. Overall adverse events following immunization rate was 23.7/100,000 doses administered. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICES?: Research on the vaccination of children with brain, immune system, and congenital disorders is imperative. Integration of advanced practices will enhance the vaccination rate.